Home / 141,272,718.94-194,955,331.09-78,548,331.05

Finding the Fourth Proportional to 141,272,718.94, 194,955,331.09 and 78,548,331.05

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Solution

The fourth proportional to 141,272,718.94, 194,955,331.09 and 78,548,331.05 is: 108,396,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,272,718.94 : 194,955,331.09 = 78,548,331.05 : x
  2. Step 2: Convert to fraction form
    141,272,718.94/194,955,331.09 = 78,548,331.05/x
  3. Step 3: Cross multiply
    141,272,718.94x = 194,955,331.09 × 78,548,331.05
  4. Step 4: Simplify right side
    141,272,718.94x = 15,313,415,886,419,678
  5. Step 5: Solve for x
    x = 15,313,415,886,419,678/141,272,718.94
  6. Step 6: Final answer
    x = 108,396,129.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.